St. John, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. John, a city in Rolette County, North Dakota.
This Afternoon
48°F
Sunny
Sunny. High near 48, with temperatures falling to around 45 in the afternoon. North wind around 14 mph, with gusts as high as 23 mph.
7-day forecast for St. John
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Sunny | 14 mph N | 0% |
| Tonight | 28°F | Mostly Cloudy then Patchy Fog | 15 mph N | 0% |
| Thursday | 37°F | Patchy Fog then Mostly Cloudy | 3 to 14 mph E | 0% |
| Thursday Night | 24°F | Partly Cloudy | 5 to 16 mph S | 0% |
| Friday | 46°F | Mostly Sunny | 10 to 16 mph SW | 0% |
| Friday Night | 31°F | Partly Cloudy | 9 to 13 mph SW | 0% |
| Saturday | 52°F | Mostly Sunny | 14 to 18 mph W | 1% |
| Saturday Night | 32°F | Mostly Clear | 6 to 15 mph W | 0% |
| Sunday | 52°F | Mostly Sunny | 6 to 14 mph SW | 0% |
| Sunday Night | 40°F | Mostly Cloudy | 16 mph SW | 0% |
| Monday | 53°F | Mostly Sunny | 14 to 21 mph W | 0% |
| Monday Night | 33°F | Partly Cloudy | 7 to 13 mph W | 0% |
| Tuesday | 49°F | Mostly Sunny | 7 to 13 mph W | 0% |
| Tuesday Night | 32°F | Partly Cloudy | 8 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for St. John (48.944, -99.713). Updated through the day.
Growing snapshot for St. John
Last spring frost
May 19
First fall frost
Sep 24
Growing season
126 days
Hardiness zone
3b
More local growing data for St. John: nearby ZIP 58369 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Belcourt Keya Radio, Nd (8.6 mi from St. John). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.